class Node:
    def __init__(self,id, name,parent , hitcon, text, answer = None):
        self.id = id
        self.name = name
        self.parent = parent
        self.child = list()
        self.text = text
        self.hitcon = hitcon
        self.answer = answer
    def check(self, node):
        if node.name== None:
            return

 